ENS 48051

v t e ENS Event
19:46 Jun 27, 2012
Title	Suction Pipe Voiding
Event Description	On 06/27/2012, it was identified that a void existed in the common suction header for Safety Injection. The void was of the size such that operability was maintained. However, this was nonconforming to the Kewaunee Power Station licensing basis. At 1446 on 06/27/2012, the Kewaunee Power Station declared both Safety Injection Train A and Safety Injection Train B Inoperable due to venting of the common suction line to remove the void. LCO 3.0.3 was entered as directed by LCO 3.5.2. ECCS Operating. This loss of safety function is reportable under 10CFR50.72(b)(3)(ii)(B). The void in question has been reduced to an acceptable size with the common Safety Injection suction piping full. Both Safety Injection Train A and Safety Injection Train B have been restored to Operable status and LCO 3.0.3 was exited at 1500 on 06/27/2012. The condition was detected by ultrasonic testing as part of a surveillance for RHR pump and valve testing. The NRC Resident Inspector has been notified.

ENS 48051 +/-
Where
Kewaunee Wisconsin (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition
LER:	05000305/LER-2012-005
Time - Person (Reporting Time:+-2.6 h-0.108 days <br />-0.0155 weeks <br />-0.00356 months <br />)
Opened:	Daniel Backus 17:10 Jun 27, 2012
NRC Officer:	Joe O'Hara
Last Updated:	Jun 27, 2012
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v • d • e

v t e Emergency Notification System
Kewaunee with 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition
WEEKMONTHYEAR2012-08-20T16:00:00 [Table view]
[ENS list for Kewaunee]

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